Distant Relatives 2

Kate Bush

George W Bush

One of these two people is currently the most powerful person on the planet, about to unleash death and destruction on an entire nation without any concrete provocation, and notorious for blundering through university and winning the elections on a margin of a few hundred voters.
The other is an acclaimed singer/songwriter who, starting a career around the age of 18, has managed to incorporate references to such literary masterpieces as Wuthering Heights and James Joyce's Ulysses into the lyrics of an oeuvre that is both publicly and critically popular.
Of course, the question is: how could they be related?